Wadi Shallalah Wastewater Treatment Plant and Effluent Reuse Facilities (C-1)
Employer
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:Ministry of Water and Irrigation – Water Authority
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Consultant
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: Fichtner /BBV/PFI/CC
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Project Value
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: 41,112,890JD
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Completion Time
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: 15/6/2014
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Project Description
Wadi Shallalah Wastewater Treatment Plant (WWTP): including all civil, electrical and mechanical works, operation, and maintenance training. Also the option to include a nitrogen treatment is considered by providing the required space on the site. The plot of the Treatment Plant is located about 1.2km southeast of Sal in the Al-Ruwaysa Valley about 1km before it joins the Shalala (Wadi) Valley.
The scope of the project comprises four segments of work as follows:
- Preliminary treatment facility (Headwork) consisting of coarse screens and fine screens, bar screens, grit chamber with grease removal, one grit classifier and grit conveyors and a primary sedimentation tank.
- Biological treatment units consisting of two parallel Aeration Activated Sludge basins, each equipped with submersible mixers and mammoth rotors.
- Two circular settlement tanks with 44m diameter with horizontal flow, equipped with blade scrapers.
- Filtration comprising multi-layer filter medium and all backwash facilities.
- UV-Disinfection installed in open channels after the filtration.
- Sludge processing facilities including mechanical sludge thickener, three sludge storage tanks for primary, excess and digested sludge, digesters, sludge dewatering with centrifuges, gas tanks and a thermal and electrical power station.
- Support buildings including an Administration Building, Workshop Building, Generator Building, Air Treatment Facilities, Sludge Pump Stations, Aerator/MCC Building and Guard House.
- Influent Storage Tank with a volume of 22,300m3.
- Effluent Storage Tank with a volume of 16,000m3.
- Vehicles, roads, drainage and other infrastructure facilities
- Effluent Pump Station at the Treatment Plant site.
- 600 mm and 700 mm Pressure Ductile Iron pipe to Sal reservoir & gravity pipe to Central Irbid WWTP with total Length 14,963.0 m .
- Mechanical Sludge Dewatering at the existing Wastewater Treatment Plant Wadi Arab:
The proposed Mechanical Sludge Dewatering consists of three centrifuges (two Duty and one stand-by), located near the existing sludge holding tank No. 1 at Wadi Al-Arab Treatment Plant.